friend of coal Share definition Flag White girl who, for whatever reason, prefers the dark meat (black men). "Uh, oh, I just spent $20 on drinks for Cindy and she's leaving with Toby. She must be a friend of coal." friend of coal by Ol' Ky Dad November 11, 2009 0 0 Get merch Get the friend of coal mug. Buy Now — $32.95 See more merch